/*
 * Licensed to Metamarkets Group Inc. (Metamarkets) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. Metamarkets licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package io.druid.storage.s3;

import com.amazonaws.auth.AWSCredentialsProvider;
import org.jets3t.service.security.AWSSessionCredentials;

public class AWSSessionCredentialsAdapter extends AWSSessionCredentials {
  private final AWSCredentialsProvider provider;

  public AWSSessionCredentialsAdapter(AWSCredentialsProvider provider) {
    super(null, null, null);
    if(provider.getCredentials() instanceof com.amazonaws.auth.AWSSessionCredentials) {
      this.provider = provider;
    } else {
      throw new IllegalArgumentException("provider does not contain session credentials");
    }
  }

  @Override
  protected String getTypeName() {
    return "AWSSessionCredentialsAdapter";
  }

  @Override
  public String getVersionPrefix() {
    return "AWSSessionCredentialsAdapter, version: ";
  }

  @Override
  public String getAccessKey() {
    return provider.getCredentials().getAWSAccessKeyId();
  }

  @Override
  public String getSecretKey() {
    return provider.getCredentials().getAWSSecretKey();
  }

  public String getSessionToken() {
    com.amazonaws.auth.AWSSessionCredentials sessionCredentials =
        (com.amazonaws.auth.AWSSessionCredentials) provider.getCredentials();
    return sessionCredentials.getSessionToken();
  }
}
